NAME ORIGIN: Named after its locality which was named after Benjamin Franklin (1706-1790), American scientist and inventor. LOCALITY: Dominant ore mineral at Franklin and Sterling Hill, New Jersey, USA.

NAME ORIGIN: Named after its locality and from the Greek philos = 'friend.' The 'friends of Franklin' are those scientific investigators who helped study the unique mineralogy and geology of this deposit. LOCALITY: Franklin mine, Sussex County, New Jersey.